Comment by Barboni

I waited until Nalak was pulled (on this occasion it was a Horde group and I'm Alliance) and then threw the Lightning Lance at him. Upon the Lance landing, Nalak receives a debuff and an add will spawn which you need to run away from until his health goes down to zero. Very easy part of the achievement.

Hope this helps!

Comment by WithinAmnesia

It is too bad that there was no 'secret ghost quest' to turn this into a Legendary Ranged Weapon. It would need something crazy like delete an exactly level 54 Player Character with at least item level 50 bind on equip epics in all slots. Then Deleting Heroic Class Related Raid Gear of Every Slot on the 'Receiving Character'. That would be 'Super Q.Q' but insanely 'Legendary'.